Huge swarms of giant jellyfish are invading the waters along Japan's Pacific coast, putting the fishing industry in jeopardy.

Most of the mammoth jellyfish weigh up to 600 pounds and are nearly seven feet long.

Japan's fishing industry said the sea creatures are a huge threat to their fishing industry. They estimate the jellyfish could cause about a $100 million loss in profits.

Some scientists believe global warming and rising temperatures could be a factor to the jellyfish's large size.

Japan's Meteorological Agency says the waters of the Sea of Japan, China and South Korea are warming at speeds faster than that of the global average.